CN104452871A - Excavator bucket tooth of improved structure - Google Patents
Excavator bucket tooth of improved structure Download PDFInfo
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- CN104452871A CN104452871A CN201410710189.3A CN201410710189A CN104452871A CN 104452871 A CN104452871 A CN 104452871A CN 201410710189 A CN201410710189 A CN 201410710189A CN 104452871 A CN104452871 A CN 104452871A
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- bearing pin
- fastening
- pin
- elastic component
- excavator bucket
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- 238000009434 installation Methods 0.000 claims abstract description 11
- 230000007704 transition Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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Abstract
The invention provides an excavator bucket tooth of an improved structure and belongs to the technical field of machines. The problem that an existing excavator bucket tooth is inconvenient to install and detach is solved by the excavator bucket tooth. The excavator bucket tooth of the improved structure comprises a tooth seat, a bucket tooth body and a pin shaft. An installation part is arranged at one end of the tooth seat. Two symmetrically-arranged connecting parts are arranged at one end of the bucket tooth body. Coaxially-formed installation holes are formed in the two connecting parts. A pin hole penetrates through the installation part. An elastic piece and a pin shaft are fixedly clamped into the pin hole. Multiple fastening blocks are arranged on the side wall, facing the pin shaft, of the elastic piece. Multiple grooves corresponding to the fastening blocks one to one are formed in the side wall, facing the elastic piece, of the pin shaft. The fastening blocks are fixedly clamped into the corresponding grooves. The excavator bucket tooth has the advantages of being simple in structure and convenient to install and detach.
Description
Technical field
The invention belongs to field of mechanical technique, relate to a kind of bucket tooth, particularly a kind of structure improved excavator bucket teeth.
Background technology
Excavator bucket teeth is the important easy consumption parts on excavator, is similar to the tooth of people.And excavator is as one of engineering machinery topmost in engineering construction, while being widely used, expose the easy loss of excavator bucket teeth under high-strength working, the shortcomings such as easy fault.And existing excavator bucket teeth has generally included bucket tooth and toothholder, both have been connected by bearing pin usually.In pin shaft structure conventional at present, there is a groove at the middle part of bearing pin, and on groove, card has jump ring, under the effect of external force, bearing pin is driven in pin-and-hole together with jump ring, by the frictional force between jump ring and pin-and-hole inwall, bearing pin is fixed in pin-and-hole, thus realize being connected of bucket tooth and toothholder.But because bearing pin and pin-and-hole are tight fit connections, require great effort very much and complex operation during installation.In this syndeton, when bearing pin works as excavator, the conduction maincenter of active force, carry huge strength, and the groove in the middle part of bearing pin reduces pin diameter, reduces the supporting capacity of bearing pin, causes the shortcoming such as bearing pin easy fracture, difficult dismounting.
Also have a kind of excavator bucket toothing using rubber centring ring to substitute jump ring at present in addition, although this structure solves the shortcoming that bearing pin circumference is rotated, enhance stability, still have bearing pin easy fracture, the shortcomings such as complex operation.
In sum, for solving the structural deficiency of existing excavator bucket teeth, need to design the excavator bucket teeth that a kind of structure is simple, easy to operate, bearing strength is high.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose the structure improved excavator bucket teeth that a kind of structure is simple, easy to loading and unloading.
Object of the present invention realizes by following technical proposal: a kind of structure improved excavator bucket teeth, comprise toothholder, bucket tooth and bearing pin, in toothholder one end, there is installation portion, there are in bucket tooth one end two symmetrically arranged connecting portions and two connecting portions all offer the coaxial installing hole arranged, installation portion is equipped with pin-and-hole, it is characterized in that, flexible and bearing pin is fixed in pin-and-hole, the sidewall that elastic component faces bearing pin have some fastening blocks, the sidewall facing elastic component at bearing pin offer some with fastening block groove one to one, described fastening block fixes with in corresponding groove.
In above-mentioned structure improved excavator bucket teeth, the sidewall facing elastic component at bearing pin has convexed to form fastening part vertically, described fastening part is fastening section and two introduction segments, above-mentioned each groove is evenly distributed on fastening section vertically, two introduction segments divide and are located at fastening section of two ends, introduction segment one end arc transition is on pin roll end face, and the other end increases gradually and is connected to fastening section of place.
In above-mentioned structure improved excavator bucket teeth, the sidewall facing bearing pin at elastic component is arranged with two guide parts vertically, and described fastening block is between two guide parts, and the spacing between two guide parts equals the width of fastening part.
In above-mentioned structure improved excavator bucket teeth, the height of fastening block is identical with the height of guide part.
In above-mentioned structure improved excavator bucket teeth, the sidewall deviating from bearing pin offers some with fastening block compensate opening one to one, and compensate opening and fastening block are on same axial line at elastic component.
In above-mentioned structure improved excavator bucket teeth, the end face that fastening block faces elastic component is the arc surface of evagination, and the bottom surface of described groove is the arc surface of indent.
Compared with prior art, the present invention by interting elastic component and bearing pin in pin-and-hole, fixed in the groove on bearing pin by the fastening block on elastic component, the elastic force applied by elastic component makes bearing pin press closer in pin-and-hole, thus bucket tooth and toothholder is firmly linked together.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation at another visual angle of the present invention.
Fig. 3 is the structural representation of Elastic part of the present invention.
Fig. 4 is the sectional structure schematic diagram of Elastic part of the present invention.
Fig. 5 is the structural representation of bearing pin in the present invention.
Fig. 6 is the side-looking structural representation of bearing pin in the present invention.
In figure: 1, toothholder; 11, installation portion; 12, pin-and-hole; 2, bucket tooth; 21, installing hole; 3, bearing pin; 31, fastening part; 31a, fastening section; 31b, introduction segment; 32, groove; 4, elastic component; 41, compensate opening; 42, guide part; 5, fastening block.
Detailed description of the invention
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Figures 1 to 6, this structure improved excavator bucket teeth comprises toothholder 1, bucket tooth 2 and bearing pin 3, in toothholder 1 one end, there is installation portion 11, in bucket tooth 2 one end, there are two symmetrically arranged connecting portions and two connecting portions all offer the coaxial installing hole 21 arranged, installation portion 11 is equipped with pin-and-hole 12, flexible 4 and bearing pin 3 is fixed in pin-and-hole 12, the sidewall that elastic component 4 faces bearing pin 3 has multiple fastening block 5, the sidewall facing elastic component 4 at bearing pin 3 offer multiple with fastening block 5 groove 32 one to one, fastening block 5 fixes with in corresponding groove 32.
By interting elastic component 4 and bearing pin 3 in pin-and-hole 12, fix in the groove 32 on bearing pin 3 by the fastening block 5 on elastic component 4, the elastic force applied by elastic component 4 makes bearing pin 3 press closer in pin-and-hole 12, thus bucket tooth 2 and toothholder 1 is firmly linked together.
Further, the sidewall facing elastic component 4 at bearing pin 3 has convexed to form fastening part 31 vertically, fastening part 31 is divided into fastening section of 31a and two introduction segment 31b, above-mentioned each groove 32 is evenly distributed on fastening section of 31a vertically, two introduction segment 31b divide and are located at fastening section of 31a two ends, introduction segment 31b one end arc transition is on bearing pin 3 end face, and the other end increases gradually and is connected to fastening section of 31a place.When bearing pin 3 is knocked enter in pin-and-hole 12 time, can make bearing pin 3 during insertion can smoothly by each fastening block 5 by introduction segment 31b.
Further, the sidewall facing bearing pin 3 at elastic component 4 is arranged with two guide parts 42 vertically, and described fastening block 5 is between two guide parts 42, and the spacing between two guide parts 42 equals the width of fastening part 31.The effect of guide part 42 be not only when bearing pin 3 knock enter in pin-and-hole 12 time, enter in pin-and-hole 12 smoothly by the bootable bearing pin 3 of guide part 42, make fastening block 5 can fix accurately in corresponding groove 32, simultaneously when fastening block 5 fastening with groove 32 in time, bearing pin 3 can be limited between two guide parts 42 by guide part 42, thus avoid this excavator bucket teeth in the course of the work bearing pin 3 there is the situation of rocking, steadiness is good.
Further, fastening block 5, guide part 42 are identical with the height of fastening part 31 three.This structure design makes when bearing pin 3 enters to after in pin-and-hole 12 completely, together with bearing pin 3 can fit tightly with elastic component 4, thus avoid this excavator bucket teeth in the course of the work bearing pin 3 there is the situation of rocking, steadiness is good.
Further, the sidewall deviating from bearing pin 3 at elastic component 4 offers multiple with fastening block 5 compensate opening 41 one to one, and compensate opening 41 and fastening block 5 are on same axial line.A pressure can be applied to elastic component 4 when the fastening part 31 of bearing pin 3 contacts with the fastening block 5 on elastic component 4, now elastic component 4 produces elastic deformation, elastic component 4 deformation space is supplied to by compensate opening 41, with each compensate opening 41 place in the segment set making elastic component 4 extrude after pressurized, ensure that the fastening block 5 on elastic component 4 can enter in the groove 32 on bearing pin 3 smoothly, thus avoid due to elastic component 4 deformation limited space, and make the limited space that the fastening block 5 on elastic component 4 bounces back, cause bearing pin 3 cannot continue reach in pin-and-hole 12, cause the phenomenon got stuck.
Further, the end face that fastening block 5 faces elastic component 4 is the arc surface of evagination, and the bottom surface of described groove 32 is the arc surface of indent.This structure design not only makes bearing pin 3 fastening block 5 when being inserted in pin-and-hole 12 can fit tightly together in groove 32, thus ensure the fastness of connection between toothholder 1 and bucket tooth 2, and due to the quantity of fastening block 5 many, enter in pin-and-hole 12 internal procedure bearing pin 3 is knocked, bearing pin 3 is also needing by next fastening block 5 after a fastening block 5, until all fastening blocks 5 fix can in corresponding groove 32, therefore the arc surface on fastening block 5 enters in pin-and-hole 12 internal procedure at bearing pin 3 and can serve as approaching face knocking, bearing pin 3 is guided to knock in pin-and-hole 12 smoothly, avoid the phenomenon occurring getting stuck.
When using this excavator bucket teeth of assembling, first elastic component 4 to be inserted in pin-and-hole 12 and elastic component 4 is close on pin-and-hole 12 inwall, needing to ensure that elastic component 4 is equipped with the side of fastening block 5 outwardly simultaneously, then toothholder 1 to be inserted in bucket tooth 2 and the pin-and-hole 12 on toothholder 1 is alignd with the installing hole 21 on bucket tooth 2, then by bearing pin 3 from wherein one installing hole 21 insert until one end of bearing pin 3 is positioned at another installing hole 21, before insertion, need ensure that the fastening part 31 on bearing pin 3 faces elastic component 4, during insertion, the introduction segment 31b be first inserted in pin-and-hole 12 contacts with fastening block 5, and have gap more than now going back between bearing pin 3 and pin-and-hole 12 inwall, bearing pin 3 can continue to go deep in pin-and-hole 12, when bearing pin 3 sidewall is close on pin-and-hole 12 inwall, now fastening block 5 still contacts with introduction segment 31b, because the gap between bearing pin 3 and pin-and-hole 12 is made up, bearing pin 3 stops mobile, now need to knock bearing pin 3 by instrument and can continue reach, under the knocking of instrument, bearing pin 3 overcomes the elastic force of elastic component 4 and continues to move in pin-and-hole 12, fastening block 5 is past retrude under the extruding of introduction segment 31b, thus be supplied to the space that bearing pin 3 continues movement in pin-and-hole 12, when this introduction segment 31b entirety is by all fastening blocks 5, fastening block 5 is resisted against in the groove 32 at fastening section of 31a place under the elastic force effect of elastic component 4, thus toothholder 1 and bucket tooth 2 are firmly linked together.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (6)
1. a structure improved excavator bucket teeth, comprise toothholder, bucket tooth and bearing pin, in toothholder one end, there is installation portion, there are in bucket tooth one end two symmetrically arranged connecting portions and two connecting portions all offer the coaxial installing hole arranged, installation portion is equipped with pin-and-hole, it is characterized in that, flexible and bearing pin is fixed in pin-and-hole, the sidewall that elastic component faces bearing pin have some fastening blocks, the sidewall facing elastic component at bearing pin offers some with fastening block groove one to one, described fastening block fixes with in corresponding groove.
2. structure improved excavator bucket teeth according to claim 1, it is characterized in that, the sidewall facing elastic component at bearing pin has convexed to form fastening part vertically, described fastening part is fastening section and two introduction segments, above-mentioned each groove is evenly distributed on fastening section vertically, two introduction segments divide and are located at fastening section of two ends, and introduction segment one end arc transition is on pin roll end face, and the other end increases gradually and is connected to fastening section of place.
3. structure improved excavator bucket teeth according to claim 2, it is characterized in that, the sidewall facing bearing pin at elastic component is arranged with two guide parts vertically, and described fastening block is between two guide parts, and the spacing between two guide parts equals the width of fastening part.
4. structure improved excavator bucket teeth according to claim 3, is characterized in that, the height of fastening block is identical with the height of guide part.
5. the structure improved excavator bucket teeth according to claim 1 or 2 or 3 or 4, is characterized in that, the sidewall deviating from bearing pin offers some with fastening block compensate opening one to one, and compensate opening and fastening block is on same axial line at elastic component.
6. the structure improved excavator bucket teeth according to claim 1 or 2 or 3 or 4, it is characterized in that, the end face that fastening block faces elastic component is the arc surface of evagination, the bottom surface of described groove is the arc surface of indent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410710189.3A CN104452871B (en) | 2014-11-29 | 2014-11-29 | Structure improved excavator bucket teeth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410710189.3A CN104452871B (en) | 2014-11-29 | 2014-11-29 | Structure improved excavator bucket teeth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104452871A true CN104452871A (en) | 2015-03-25 |
| CN104452871B CN104452871B (en) | 2017-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410710189.3A Active CN104452871B (en) | 2014-11-29 | 2014-11-29 | Structure improved excavator bucket teeth |
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| Country | Link |
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| CN (1) | CN104452871B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040772A (en) * | 2015-06-24 | 2015-11-11 | 柳州金特新型耐磨材料股份有限公司 | Electromagnetic connecting type bucket wear-resisting plate structure |
| CN106065644A (en) * | 2015-09-18 | 2016-11-02 | 徐工集团工程机械股份有限公司 | Bucket tooth assembly, digging mechanism and excavation machinery |
| CN110258688A (en) * | 2019-07-16 | 2019-09-20 | 中交天津航道局有限公司 | A kind of expansion chuck reamer tooth attachment device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041984A (en) * | 1988-10-20 | 1990-05-09 | 埃斯科公司 | The method of mining tooth point is installed |
| US5724756A (en) * | 1997-01-06 | 1998-03-10 | Caterpillar Inc. | Bucket tip retention means |
| US20060078373A1 (en) * | 2002-09-30 | 2006-04-13 | David Dingwall | Component interlocking |
| WO2008025062A1 (en) * | 2006-08-28 | 2008-03-06 | Cutting Edges Replacement Parts Pty Ltd | Locking pin and a locking pin arrangement |
| CN101573541A (en) * | 2006-10-19 | 2009-11-04 | 天际起重机科技有限公司 | Coupling pin and method of use thereof |
| CN203238696U (en) * | 2013-05-10 | 2013-10-16 | 宁波市鄞州精铸五金厂 | Excavator bucket tooth |
-
2014
- 2014-11-29 CN CN201410710189.3A patent/CN104452871B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1041984A (en) * | 1988-10-20 | 1990-05-09 | 埃斯科公司 | The method of mining tooth point is installed |
| US5724756A (en) * | 1997-01-06 | 1998-03-10 | Caterpillar Inc. | Bucket tip retention means |
| US20060078373A1 (en) * | 2002-09-30 | 2006-04-13 | David Dingwall | Component interlocking |
| WO2008025062A1 (en) * | 2006-08-28 | 2008-03-06 | Cutting Edges Replacement Parts Pty Ltd | Locking pin and a locking pin arrangement |
| CN101573541A (en) * | 2006-10-19 | 2009-11-04 | 天际起重机科技有限公司 | Coupling pin and method of use thereof |
| CN203238696U (en) * | 2013-05-10 | 2013-10-16 | 宁波市鄞州精铸五金厂 | Excavator bucket tooth |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105040772A (en) * | 2015-06-24 | 2015-11-11 | 柳州金特新型耐磨材料股份有限公司 | Electromagnetic connecting type bucket wear-resisting plate structure |
| CN106065644A (en) * | 2015-09-18 | 2016-11-02 | 徐工集团工程机械股份有限公司 | Bucket tooth assembly, digging mechanism and excavation machinery |
| CN110258688A (en) * | 2019-07-16 | 2019-09-20 | 中交天津航道局有限公司 | A kind of expansion chuck reamer tooth attachment device |
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| Publication number | Publication date |
|---|---|
| CN104452871B (en) | 2017-08-08 |
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Effective date of registration: 20231016 Address after: No. 17 Ruilong Road, Lingang Equipment Industrial Park, Xianxiang Town, Xiangshan County, Ningbo City, Zhejiang Province, 315700 (self declared) Patentee after: Lingfeng Mining Machinery (Xiangshan) Co.,Ltd. Address before: 315135, Zhejiang, Ningbo province Yinzhou District Yunlong Town Lotus Bridge Village Patentee before: NINGBO YINZHOU PRECISION CASTING HARDWARE FACTORY |